JPH0443031A - Sandwich composite material - Google Patents
Sandwich composite materialInfo
- Publication number
- JPH0443031A JPH0443031A JP15129190A JP15129190A JPH0443031A JP H0443031 A JPH0443031 A JP H0443031A JP 15129190 A JP15129190 A JP 15129190A JP 15129190 A JP15129190 A JP 15129190A JP H0443031 A JPH0443031 A JP H0443031A
- Authority
- JP
- Japan
- Prior art keywords
- composite material
- resin
- reinforced
- fiber
- core material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 23
- 229920005989 resin Polymers 0.000 claims abstract description 25
- 239000011347 resin Substances 0.000 claims abstract description 25
- 239000011162 core material Substances 0.000 claims abstract description 19
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 18
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 14
- 239000003733 fiber-reinforced composite Substances 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract description 6
- 239000000835 fiber Substances 0.000 abstract description 6
- 239000012779 reinforcing material Substances 0.000 abstract description 4
- 239000004925 Acrylic resin Substances 0.000 abstract description 3
- 229920000178 Acrylic resin Polymers 0.000 abstract description 3
- 239000004677 Nylon Substances 0.000 abstract description 2
- 239000004952 Polyamide Substances 0.000 abstract description 2
- 239000004793 Polystyrene Substances 0.000 abstract description 2
- 229920001778 nylon Polymers 0.000 abstract description 2
- 229920002647 polyamide Polymers 0.000 abstract description 2
- 229920000515 polycarbonate Polymers 0.000 abstract description 2
- 239000004417 polycarbonate Substances 0.000 abstract description 2
- 229920002223 polystyrene Polymers 0.000 abstract description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 abstract description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 abstract 1
- 230000004215 skin function Effects 0.000 abstract 1
- 239000011800 void material Substances 0.000 abstract 1
- 239000012783 reinforcing fiber Substances 0.000 description 7
- 239000011159 matrix material Substances 0.000 description 6
- 229920000049 Carbon (fiber) Polymers 0.000 description 4
- 239000004917 carbon fiber Substances 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 229920000297 Rayon Polymers 0.000 description 2
- 239000004760 aramid Substances 0.000 description 2
- 229920006231 aramid fiber Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 230000009477 glass transition Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 239000011208 reinforced composite material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明はサンドイッチ複合材に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to sandwich composites.
炭素繊維、ガラス繊維、アラミド繊維等の強化用繊維と
して用いる繊維強化複合材料は、軽量であシかつ高強度
、高弾性率等の特長を有するので、産業用部品、スポー
ツ・レジャー用品等に広く用いられている。今後さらＫ
その使用分野は拡大し使用量が増大することが期待され
ている。Fiber-reinforced composite materials used as reinforcing fibers such as carbon fibers, glass fibers, and aramid fibers have features such as light weight, high strength, and high modulus of elasticity, so they are widely used in industrial parts, sports and leisure goods, etc. It is used. In the future K
It is expected that the field of use will expand and the amount used will increase.
近年熱可塑性樹脂からなるシート状の芯材の両面に繊維
強化熱可塑性樹脂の外皮を接合してなる、いわゆるサン
ドインチ複合材が米国特許＊４７７８７１７号明細書に
開示されている。In recent years, US Pat. No. 4,778,717 discloses a so-called sand-inch composite material, which is made by bonding a fiber-reinforced thermoplastic resin outer skin to both sides of a sheet-like core material made of a thermoplastic resin.
この特許は軽量で裏町性であり熱賦型できる上述のよう
々サンドイッチ複合材を提案している。This patent proposes a sandwich composite material as described above that is lightweight, malleable, and heat formable.
一般に熱可塑性樹脂は溶融時の粘度が熱硬化性樹脂の未
硬化時の粘度に比べて高く、強化用線維として連続繊維
や織物等を用いた場合には、樹脂の連続１１！！や織物
への含浸が十分でなく、結果としてボイドが多く、期待
通りの物性を得ることが難しい。また熱可塑性樹脂を溶
媒に溶した状態で強化用繊維に含浸させる場合には、溶
媒の蒸発とともに溶液の粘度が上昇するために完全に溶
媒を取り除くことが不可能なため、結果として複合材中
に溶媒がボイドとして残り、期待通りの物性を得ること
が難しくなる。In general, thermoplastic resins have a higher viscosity when melted than the viscosity of thermosetting resins when uncured, and when continuous fibers or fabrics are used as reinforcing fibers, continuous 11! ! The impregnation into the fabric is insufficient, resulting in many voids, making it difficult to obtain the expected physical properties. Furthermore, when a reinforcing fiber is impregnated with a thermoplastic resin dissolved in a solvent, the viscosity of the solution increases as the solvent evaporates, making it impossible to completely remove the solvent. The solvent remains in the form of voids, making it difficult to obtain the expected physical properties.
また熱硬化性樹脂をマトリクス樹脂として用いると未硬
化時の粘度が低いため、強化繊維中に十分く樹脂を含浸
することが可能で、ボイドの少ない均質な繊維強化複合
材を得ることができるが、他方熱硬化性樹脂だけを用い
ると−度所定の形状に成形した後は別の形状に変形する
ことができない欠点があった。Furthermore, when a thermosetting resin is used as a matrix resin, its viscosity is low when uncured, so it is possible to sufficiently impregnate the reinforcing fibers with the resin, making it possible to obtain a homogeneous fiber-reinforced composite material with few voids. On the other hand, when only a thermosetting resin is used, there is a drawback that once it has been molded into a predetermined shape, it cannot be deformed into another shape.
上述のように熱可塑性樹脂をマトリクス樹脂として用い
る従来のサンドイッチ複合材は、ボイドが多く不均質な
本のであシ強度、弾性率が不十分なものであった。As mentioned above, conventional sandwich composite materials using a thermoplastic resin as a matrix resin have many voids, are non-uniform, and have insufficient strength and elastic modulus.
また熱硬化性樹脂をマ） ＩＪクス樹脂として用いると
、熱可塑性樹脂をマトリクス樹脂として用いた時の欠点
はなくなるが、熱硬化性樹脂だけをマ） ＋７クス樹脂
として用いたのでは再賦型ができないものであった。Also, if a thermosetting resin is used as a matrix resin, the disadvantages of using a thermoplastic resin as a matrix resin will be eliminated, but if only a thermosetting resin is used as a matrix resin, it will be difficult to reshape. It was impossible.
したがって本発明の目的は、この種のＩＩｌ、！１強化
複合材が本来有すべき強度、弾性率等の物性を満足し、
ボイドの発生がなく、熱による再賦型がある程度可能な
複合材を提供することにある。It is therefore an object of the present invention to provide IIl,! of this kind! 1. Satisfies the physical properties such as strength and elastic modulus that a reinforced composite material should have,
The object of the present invention is to provide a composite material that does not generate voids and can be reshaped to some extent by heat.
本発明の要旨は、熱可塑性樹脂からなるシート状の芯材
の両面に、線維強化した熱硬化性樹脂からなる外皮を接
合してなるサンドイッチ複合材である。The gist of the present invention is a sandwich composite material formed by bonding an outer skin made of a fiber-reinforced thermosetting resin to both sides of a sheet-like core material made of a thermoplastic resin.
なお芯材や外皮の厚みは用途、再賦型の必要性等に応じ
て任意に決めればよい。Note that the thickness of the core material and the outer skin may be arbitrarily determined depending on the use, the necessity of reshaping, etc.
本発明のサンドインチ複合材中のシート状芯材について
まず説明する。First, the sheet-like core material in the sand inch composite material of the present invention will be explained.
シート状芯材の素材の熱可塑性樹脂としては、ポリカー
ボネイト、アクリル樹脂、ムＢ８樹脂、ナイロン（ポリ
アミド）、ポリスチレン、熱可塑性エラストマー等を使
用することができる。As the thermoplastic resin of the sheet-like core material, polycarbonate, acrylic resin, MuB8 resin, nylon (polyamide), polystyrene, thermoplastic elastomer, etc. can be used.
外皮は高強度、高弾性率の補強繊維からなる補強材で熱
硬化性樹脂を強化してなる繊維強化複合材料からなって
いる。このような外皮は、周知の成形方法によって用意
することができる。The outer skin is made of a fiber-reinforced composite material made by reinforcing a thermosetting resin with a reinforcing material made of reinforcing fibers with high strength and high modulus. Such a skin can be prepared by known molding methods.
補強繊維としては脚素繊維、アラミド繊維、アルミナ繊
維、ガラス繊維、炭化ケイ素繊維、ポロン繊維等を用い
ることができる。これらの補強繊維は、一方向に引き揃
えられた状態であるいは織物状でまたはマットの状態で
補強材を形成している。As reinforcing fibers, base fibers, aramid fibers, alumina fibers, glass fibers, silicon carbide fibers, poron fibers, etc. can be used. These reinforcing fibers form the reinforcing material in a unidirectionally aligned state or in a woven or matted state.
外皮の複合材のマ） ＩＪクス樹脂としては、エポキシ
樹脂、不飽和ｌリエステル樹脂、フェノール樹脂、ポリ
イミド樹脂等の熱硬化性樹脂が用いられる。芯材として
用いる熱可塑性樹脂とガラス転移点などの熱的性質がで
きるだけ近いものが好ましい。Thermosetting resins such as epoxy resins, unsaturated polyester resins, phenol resins, and polyimide resins are used as the IJ resin for the composite material of the outer skin. It is preferable that the thermoplastic resin used as the core material has thermal properties such as glass transition point as close as possible.
この発明のサンドイッチ複合材は、用途等に応じて外皮
にエンボス加工を施したり、熱賦型の後、布帛、皮革等
を張り付けなどして、意匠効果をもたせたり、他の効果
を本たせたりしてもよい。The sandwich composite material of this invention can be given a design effect or other effects by embossing the outer skin or pasting fabric, leather, etc. after heat-forming, depending on the purpose. You may.
本発明のサンドインチ複合材の芯材と外皮をなす繊維強
化複合材との接合は、芯材の熱融着によってもよいし、
接着剤を用いてもよい。また未硬化の外皮の表面に熱可
塑性樹脂フィルムを貼り、成形して、得られる表面に熱
可塑性樹脂層をもつ外皮を熱融着すること吃できる。The core material of the sand inch composite material of the present invention and the fiber reinforced composite material forming the outer skin may be joined by heat fusion of the core material,
An adhesive may also be used. It is also possible to apply a thermoplastic resin film to the surface of an uncured outer shell, mold it, and heat-seal the outer shell having a thermoplastic resin layer to the obtained surface.
本発明のサンドインチ複合材は、色々な方法で製作する
ことができるが、たとえば次のようＫして製作される。The sand inch composite material of the present invention can be manufactured by various methods, but for example, it can be manufactured as follows.
外皮となる線維強化熱硬化性樹脂を周知の成形方法によ
って用意し、これを芯材となる熱可塑性樹脂シートの両
面に熱融着する。A fiber-reinforced thermosetting resin serving as the outer skin is prepared by a well-known molding method, and is heat-sealed to both sides of a thermoplastic resin sheet serving as the core material.
熱融着の条件は、使用する熱可塑性樹脂の種類により変
動するが、熱プレスを用いて、圧力１〜Ｓ Ｏｋｇ／ｃ
ｍ”のもとに５〜２０分で行われる。The conditions for heat fusion vary depending on the type of thermoplastic resin used, but using a heat press, the pressure is 1 to S Okg/c.
m” for 5 to 20 minutes.
本発明のサンドインチ複合材の賦形は次のようＫしてな
される。まずサンドインチ複合材を所定の大きさに切断
した後、熱風炉、赤外線加熱炉、誘電加熱炉等にいれ、
芯材または外皮に用いてｂる樹脂のガラス転移温度より
１０〜２００℃高い温度に加熱する。これを任意の形状
をした金型にいれ、プレス成形される。The sand-inch composite material of the present invention is shaped as follows. First, after cutting the Sand Inch composite material into a predetermined size, it is placed in a hot blast furnace, infrared heating furnace, dielectric heating furnace, etc.
It is heated to a temperature 10 to 200°C higher than the glass transition temperature of the resin used for the core material or outer skin. This is put into a mold of any shape and press-molded.
また本発明のサンドイッチ複合材のうち、厚みの薄いも
のはブロー成形法によって賦形すること本可能である。Furthermore, among the sandwich composite materials of the present invention, thin ones can be shaped by blow molding.
〔実施例〕 以下実施例によって本発明を具体的に説明する。〔Example〕 EXAMPLES The present invention will be specifically explained below with reference to Examples.
実施例１
炭素繊維クロスプリプレグ（三愛しイヨン■製パイロフ
ィル［Ｆ］τＲ３１１０／φ３４０ 厚み（Ｌ２８■
）をオートクレーブ中１３０℃、Ｂｙ／ｅｓ”の温度・
圧力下で７時間硬化して、単層の繊維強化複合材（厚み
（１２７ｍ ）を得た。Example 1 Carbon fiber cloth prepreg (Pyrofil [F] made by San-ai Iyon ■) τR3110/φ340 Thickness (L28■
) in an autoclave at a temperature of 130℃, By/es''.
Cured under pressure for 7 hours to obtain a single layer fiber reinforced composite (thickness (127 m)).
次にポリメチルメタアクリレート板（三菱レイヨン■製
アクリライト−Ｘ［Ｆ］厚み１６ ｍ ）の上下から先
に製作した繊維強化複合材を重ねて、２００℃、５ψｔ
２の温度・圧力下で５分間熱プレスして、サンドイッチ
複合材（厚みｔ１■）を得た。Next, the previously produced fiber-reinforced composite material was layered on top and bottom of a polymethyl methacrylate board (Acrylite-X [F] manufactured by Mitsubishi Rayon ■, thickness 16 m) and heated at 200°C for 5ψt.
A sandwich composite material (thickness t1) was obtained by hot pressing at a temperature and pressure of 2 for 5 minutes.
これを切断して、断面を顕微鏡観察したところ、炭素繊
維トウへの含浸状態が良好で、ボイドは発見されなかっ
た。また、外皮と芯材の間に剥がれ等の欠陥は観察され
なかった。（添付資料参照）
得られたサンドインチ複合材を熱風炉中で２２０℃まで
加熱した後、これを金型に移し、加圧成形したところ外
観の優れた成形品が得られた。これを切断して断面を顕
微鏡観察したところ、外皮と芯材の間釦剥がれ等の欠陥
は観察されなかった。When this was cut and the cross section was observed under a microscope, it was found that the carbon fiber tow was well impregnated and no voids were found. Further, no defects such as peeling between the outer skin and the core material were observed. (See attached document) The obtained sandwich composite material was heated to 220° C. in a hot air oven, and then transferred to a mold and pressure-molded, resulting in a molded product with an excellent appearance. When this was cut and the cross section was observed under a microscope, no defects such as button peeling between the outer skin and the core material were observed.
実施例２
実施例１で使用したのと同様の炭素１！ｌ！１クロスプ
リプレグの上下からアクリル樹脂フィルム（玉貸しイヨ
ン■製アクリプレン［Ｆ］フィルム厚みα１■）を重ね
て、オートクレーブ中１５０℃、８ ｋｌｉ／ｃｐｓ”
の温度・圧力下で７時間硬化して繊維強化複合材（厚み
ＣＪ、５■）を得た。Example 2 The same carbon 1 as used in Example 1! l! 1. Layer acrylic resin films (Acryprene [F] film thickness α1, manufactured by Tamakashi Iyon) from above and below the cross prepreg, and heat in an autoclave at 150°C at 8 kli/cps.
After curing for 7 hours at a temperature and pressure of
次にポリメチルメタアクリレート板（厚みｃＬ６■）の
上下から先に製作した繊維強化複合材を重ねて、２００
℃、５ ＊／ｃｍ”の温度・圧力下で５分間熱プレスし
て、サンドインチ複合材（厚み１．２−）を得た。Next, the fiber-reinforced composite material made earlier was layered on top and bottom of the polymethyl methacrylate board (thickness cL6), and
C., and hot pressed for 5 minutes at a temperature and pressure of 5*/cm" to obtain a sandwich composite material (thickness: 1.2-cm).
これを切断して断面を顕微鏡観察したところ、炭素繊維
トウへの含浸状態は良好で、ボイドは発見されなかった
。また外皮と芯材の間に剥がれ等の欠陥は観察されなか
った。When this was cut and the cross section was observed under a microscope, the state of impregnation into the carbon fiber tow was good and no voids were found. Moreover, no defects such as peeling between the outer skin and the core material were observed.
得られたサンドインチ複合材を熱風炉で２２０℃まで加
熱した後、これを金型に移し、加圧成形したところ、外
観の優れた成形品が得られた。The obtained sandwich composite material was heated to 220° C. in a hot air oven, and then transferred to a mold and pressure-molded, resulting in a molded product with an excellent appearance.
これを切断して断面を顕微鏡観察したところ、外皮と芯
材の間に剥がれ等の欠陥は観察されなかった。When this was cut and the cross section was observed under a microscope, no defects such as peeling between the outer skin and the core material were observed.
本発明のサンドインチ複合材は、外皮となるｌＩＩＩＩ
ｍ強化複合材料のマトリクス樹脂として、未硬化時に粘
度が低く、強化材への含浸が容易な熱硬化性樹脂を用い
、芯材となる樹脂に熱可塑性樹脂を用いることで、ある
程度熱賦型できる性質を残しだまま、従来のサンドイン
チ複合材に見られる、強度、弾性率の低下の原因となる
ボイド等の欠陥を排除したサンドイツチ板が得られるか
ら産業用部品、スポーツ・レジャー用品等に広く用いら
れる。The sandwich composite material of the present invention has lIII as an outer skin.
By using a thermosetting resin as the matrix resin of the m-reinforced composite material, which has low viscosity when uncured and is easy to impregnate into the reinforcing material, and using a thermoplastic resin as the core resin, it can be heat-formed to some extent. It is possible to obtain a sanderch board that eliminates defects such as voids that cause a decrease in strength and modulus of elasticity that are found in conventional sanderch composite materials while retaining its properties, so it is widely used in industrial parts, sports and leisure goods, etc. used.
特許出願人 三菱レイヨン株式会社Patent applicant: Mitsubishi Rayon Co., Ltd.
Claims (1)
化した熱硬化性樹脂からなる外皮を接合してなるサンド
イツチ複合材。A sandwich composite material made by bonding a fiber-reinforced thermosetting resin outer skin to both sides of a sheet-like core material made of thermoplastic resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15129190A JPH0443031A (en) | 1990-06-08 | 1990-06-08 | Sandwich composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15129190A JPH0443031A (en) | 1990-06-08 | 1990-06-08 | Sandwich composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0443031A true JPH0443031A (en) | 1992-02-13 |
Family
ID=15515473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15129190A Pending JPH0443031A (en) | 1990-06-08 | 1990-06-08 | Sandwich composite material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0443031A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020508230A (en) * | 2017-02-21 | 2020-03-19 | オートモビリ ランボルギーニ ソチエタ ペル アツイオニ | Process for producing composite products and semi-finished products and products obtained thereby |
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1990
- 1990-06-08 JP JP15129190A patent/JPH0443031A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020508230A (en) * | 2017-02-21 | 2020-03-19 | オートモビリ ランボルギーニ ソチエタ ペル アツイオニ | Process for producing composite products and semi-finished products and products obtained thereby |
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